target/linux/generic/pending-5.4/770-14-net-ethernet-mtk_eth_soc-set-PPE-flow-hash-as-skb-ha.patch

   1 From: Felix Fietkau <nbd@nbd.name>
   2 Date: Sun, 13 Sep 2020 08:27:24 +0200
   3 Subject: [PATCH] net: ethernet: mtk_eth_soc: set PPE flow hash as skb hash
   4  if present
   5
   6 This improves GRO performance
   7
   8 Signed-off-by: Felix Fietkau <nbd@nbd.name>
   9 ---
  10
  11 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
  12 +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
  13 @@ -1316,6 +1316,10 @@ static int mtk_poll_rx(struct napi_struc
  14                 skb->protocol = eth_type_trans(skb, netdev);
  15                 bytes += pktlen;
  16
  17 +               hash = trxd.rxd4 & GENMASK(13, 0);
  18 +               if (hash != GENMASK(13, 0))
  19 +                       skb_set_hash(skb, hash, PKT_HASH_TYPE_L4);
  20 +
  21                 if (netdev->features & NETIF_F_HW_VLAN_CTAG_RX &&
  22                     (trxd.rxd2 & RX_DMA_VTAG))
  23                         __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),